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<p>Geosynthetic-reinforced soil (GRS) walls typically exhibit seismic amplification and crack development during earthquakes. Though GRS walls are generally considered to possess excellent seismic resistance, these characteristics may lead to wall failure under strong shaking. To address this issue, this paper presents a pseudo-static analysis framework for GRS walls that accounts for the combined effects of seismic amplification and crack development, using the kinematic approach of limit analysis. Parametric studies are conducted to investigate the performance of GRS walls with different reinforcement lengths and layouts. The effects of seismic amplification and the development of cracks are assessed. The results demonstrate that the seismic amplification effect and cracks severely jeopardize the stability. The stabilizing contribution of the wall facing becomes insignificant under strong seismic conditions. In this situation, lengthening the reinforcement layers could be adopted, and lengthening the lower middle part of the reinforcement layers has the best effect. A linear increasing distribution of reinforcement and bottom reinforcement densification can obviously reduce the required reinforcement. The observations in this study are significant in the context of seismic design of segmental GRS walls.</p>

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Pseudo-Static Analysis of Segmental Retaining Walls in Reinforced Soil with Acceleration Amplification

  • 期刊论文

  • 发表日期：

    2025年12月9日

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  • Fei Zhang,
  • Yuhao Yao,
  • Feizhi Xiao,
  • Shilin Jia,
  • Shuang Shu

摘要

Geosynthetic-reinforced soil (GRS) walls typically exhibit seismic amplification and crack development during earthquakes. Though GRS walls are generally considered to possess excellent seismic resistance, these characteristics may lead to wall failure under strong shaking. To address this issue, this paper presents a pseudo-static analysis framework for GRS walls that accounts for the combined effects of seismic amplification and crack development, using the kinematic approach of limit analysis. Parametric studies are conducted to investigate the performance of GRS walls with different reinforcement lengths and layouts. The effects of seismic amplification and the development of cracks are assessed. The results demonstrate that the seismic amplification effect and cracks severely jeopardize the stability. The stabilizing contribution of the wall facing becomes insignificant under strong seismic conditions. In this situation, lengthening the reinforcement layers could be adopted, and lengthening the lower middle part of the reinforcement layers has the best effect. A linear increasing distribution of reinforcement and bottom reinforcement densification can obviously reduce the required reinforcement. The observations in this study are significant in the context of seismic design of segmental GRS walls.